Question

calculate the number of molecules present in 22 g of carbon dioxide, Co2

Answer 1

I mole of co2 have weight = 44 gram
so 22g of co2 is half mole
so 1/2(avagadro no. )
= (6.022×10²³)1/2
= 3.011×10²³ molecules

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Answer 2

Relative molecular mass of co2 is 44.(O=16,C=12).
So the number of atoms in 44g is 6.022×10^23(avegadro constant).
Therefore the number of carbon atoms in 22g is 6.022×10^23/2.as in one atom there is only one atom of carbon.